Measurements:
°C
°F
Nantong
72°F
SW 11 mph
Feels like: 72°F
Precip: 33%
World Resorts China Nantong Weather

Nantong Sea Water Temperature

Current Sea Water Temperature:
+80.0°F
Maximum Sea Water Temperature in June: 85.2°F
Minimum Sea Water Temperature in June: 68.0°F
Average water temperature in June: 77.6°F

Sea Water Temperature for the Last 10 Days:

June 23 80.0°F June 18 80.0°F
June 22 81.0°F June 17 78.8°F
June 21 80.6°F June 16 77.8°F
June 20 80.4°F June 15 79.2°F
June 19 79.6°F June 14 80.4°F

When is the Warmest Sea for Nantong?

According to our data for the last three years for Nantong the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Nantong was 91.7°F. The maximum and minimum values were 88.8°F and 95.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Nantong was 88.2°F. The maximum and minimum values were 84.8°F and 90.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Nantong was 89.0°F. The maximum and minimum values were 83.4°F and 92.8°F respectively.

Best Time to Visit Nantong
The most sunny months:
December 18 days
January 16 days
October 16 days
The most warm months:
August 93.0 °F
July 92.9 °F
June 86.5 °F
Warmest sea temperature:
August 88.4 °F
July 85.5 °F
September 83.8 °F
The most cold months:
January 46.1 °F
February 48.5 °F
December 50.1 °F
The most rainy months:
July 9 days
August 8 days
June 6 days
The most windy months:
May 9 mph
March 9 mph
April 9 mph

Nantong on the Weather Map

China Resorts:
NAME
Beidaihe +70
Beijing +72
Dadunhai +84
Dalian +72
Guangzhou +86
Hainan +78
Hong Kong +84
Macau +86
Quingdao +72
Sanya +84
Shanghai +74
Shenzhen +84
Weihai +72
Yalong Bay +84
Yantai +70
24 Hours Weather Forecast
Nantong
Local time: 05:53
24 jun, wednesday
0600 72°F
SW
11 mph
0900 74°F
SW
12 mph
1200 78°F
SW
9 mph
1500 78°F
SW
12 mph
1800 76°F
SW
9 mph
2100 72°F
S
5 mph
25 jun, thursday
0000 70°F
S
3 mph
0300 70°F
S
4 mph